Re: [uml-user] Too slow ...

[Paulo da S. <psd...@es...>]

Nicolas Boullis escreveu:
> Paulo da Silva wrote:
>   
>> Hi!
>>
>> I am using UML for a long time. It always took some time to boot.
>>
>> But now, after moving to 2.6.25 kernel it takes no less than 15 minutes 
>> to boot!!!
>> In this time, my laptop (4Gb RAM Intel core duo 2.4GHz) does not make 
>> any relevant use of the CPU and there is almost no hd accesses!!!
>>
>> What could be wrong?
>>     
>
> You should have a look on the host and see how much time it is spending
> waiting for I/O (use top or vmstat) while the guest is starting. A guess
> is that your storage has a high latency and that the I/O serialization
> kills performance.
>
>   
Are you meaning the wa field of the summary line? There is no special 
change there.
The HD led also lights only (almost) once for each line that is 
displayed on the console.
Between each "booting process" line displayed there is an interval 
(about 5-15 secs) of time where nothing seems to happen!

The same happens for shutdown or for any console command.